AQA · Mathematics · 8300
GCSE Maths: Graphs: misleading graphs
Statistics · AQA GCSE Maths (8300). Cards are generated from the Corbettmaths practice questions for Graphs: misleading graphs (Corbettmaths Video 160), and every card links back to the exact page it came from. Practice tests are drawn from this deck’s own cards. Source material © Corbettmaths — used with attribution.
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Why is it misleading to use unequal bar widths in a bar chart?
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Unequal widths can make it difficult to compare values accurately, as the visual size/area of bars becomes inconsistent with the values they represent.
What is a common way that dual bar charts can be misleading?
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Using inconsistent scales, missing or unclear legends, or making the bars different widths between the two categories being compared.
What makes a pie chart misleading in terms of angle representation?
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When the angles of the sectors don't accurately represent the proportions of the data, or when the sectors don't add up to 360 degrees.
How can a bar chart with a truncated y-axis be misleading?
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It exaggerates differences between values by making small differences appear much larger than they actually are.
Why might a line of best fit on a scatter graph lead to misleading claims?
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Because it shows only an average trend and doesn't guarantee the exact relationship claimed (e.g., exact annual increases), especially with limited or scattered data points.
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